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c: Copyright (C) Daniel Stenberg, daniel@haxx.se, et al. SPDX-License-Identifier: curl Long: interface Arg: Help: Use network INTERFACE (or address) Category: connection Added: 7.3 Multi: single See-also:

  • dns-interface Example:
  • --interface eth0 $URL ---

--interface

Perform an operation using a specified interface. You can enter interface name, IP address or host name. An example could look like:

curl --interface eth0:1 https://www.example.com/

On Linux it can be used to specify a VRF, but the binary needs to either have CAP_NET_RAW or to be run as root. More information about Linux VRF: https://www.kernel.org/doc/Documentation/networking/vrf.txt